The product is an OEM 1985 Honda CR80R valve, specifically designed for the exhaust butterfly. It is a genuine part manufactured by Honda in Japan, with the OE/OEM part number 18353-GC4-710. The manufacturer warranty is unspecified but the high-quality construction ensures durability and reliability. This critical part is essential for maintaining the performance and efficiency of the motorcycle, making it a must-have for any Honda CR80R enthusiast.